ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.Z > T50.Z1 > T50.Z12 T50.Z12 Poisoning by immunoglobulin, intentional self-harm Non-Billable/Non-Specific Codes T50.Z12A..., initial encounterT50.Z12D..., subsequent encounterT50.Z12S..., sequela